Loom-shuttle



(No Modem f 2 sheets-sheen 1. A. B. TAYL0R.

LOOM SHUTTLE. No. 373,913. Patented Nov, 29, 18877.

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(N0-Model.) 2 sheets-sheet 2.

A. B. TAYLOR. LOOM; SHUTTLE.

No. 373,913. Patented Nov. 29, 1887'l IIWENTDR N. PEIEHS, Pnumuthugmbher, wn'sh nnnnnnn C.

UNITED STATES PATENT @Ferca AMOS B. TAYLOR, OF WOLLASTON, MASSACHUSETTS.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 373,913, dated November 29, 1887.

vApplication tiled June 24,1886. Serial No. 206,173. (No model.)

To all whom it may concern.'

Be it known that I, AMos TAYLOR, a `citizen of the United States, residing at Wollaston, in the county of Norfolk and State of Massachusetts, have invented certain Improvements in Loom-Shuttles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making partv of this specification, in

I0 Which- Figurel isa central vertical section through a portion of a shuttle constructed in accordance with my invention. Fig. 2 is a horizontal section through the same on the line a; xof

Fig. l, with the cop'in place upon the expanded spindle. Fig. 3 is a central vertical section of a portion ofthe shuttle with the spindle raised. Fig. 4 is a perspective view of the inner end of the spindle detached and ze the friction-roll used in connection therewith.

My invention relates to that class of loomshuttles in which a split spindle is employed, within which is placed-a longitudinal sliding wedge or pin which acts near the point ofthe spindle to expand the'sanie when closed down or pin, as'hereinafter more fully described,

and specifically pointed out in the claim.

In the said drawings, A represents the shut-` tle-body of the usual form, within-a cavity or recess, a, at one end of which is pivoted at b the spindle B, over the heel or base c of which is placed the ordinary dat heel-spring, d, which holds the spindlein place when-raised or when closed down in al horizontal position within the cop-chamber e of the shuttle. At the upper front corner or portion of the heel c of the spindle is formed a semicircular or arc-shaped notch or recess, f, which extends entirely across the width of the heel c, and forms a bearing or support for an anti-friction roll, g,

upon the upper side of which bears the heelspringd, the roll g being thus interposed between the heel of the spindle and the spring, and being held securely in place by the latter, the roll having no gudgeons or supporting- 5o shaft, but merely resting in the curved notch or recess f. It will be obvious that the roll g failure of the spring to properly close down the spindle into its horizontal position is entirely avoided, and any possibility of damage to the warp from this cause effectually prevented. from n'ear the point entirely through the heel, or, if preferred, only as far as the heel, its two parts, h i, being grooved longitudinally, as seen at 7a, for the reception of a long wedge or pin, m, the point of which, when pushed forward in a manner to be presently explained, is brought into contact with the inclines or ends ,n of the grooves 7c, and thus separates the two parts h i and expands the spindle near its point or front end against the hollow interior of the cop D, which is thereby held securely invplace, as desired. l

A wedge or expander-pin placed within a split spindle and acting near the point of the same in the manner described has long been in useand forms no part of myinvention,which merely relates to the means employed for operating the said expanding-pin, as will now be described. Within a central slit in the under side of theshuttle-body A, beneath and slightly in the rear ofthe pivot b of the spindle B, is pivoted on a pin, p, inline with the axis of the spindle, a curvedplate or rocker-arm, G, of the form seen in Figs. l and 3, which eX- tends around in front of the heel o and upward into an enlarged or recessed portion, q, of the split between the two portions 7L i, and thence into and through a notch or open slot, r, at the rear or inner end of the expander-pin m, above which it is provided with a lip or other suitable projection or enlargement, s, as seen in Figs. l and 3, which prevents the end of the arm G from dropping down out of the notch r of the pin m as the spindle is raised on its pivot out of the shuttle. Beneath the expander-pin m the end of the arm G is provided with astop or shoulder, t, which bears against the under side of the pin and prevents the end of the arm The spindle B is split lengthwisev IOO Although the antifrictiou roll g may be used to great advantage in connection with a pivots bp of the spindle and rocker-arm are com mon spindle havingT n0 expanding device,

so placed with respect to each other that the said spindle and arm will rock in arcs of circles eccentric to each other, and thus when the spindle is raised the upper portion ofthe arin G will be carried backward toward the heel c, as seen in Fig. 3, drawing with it the expanderpin m, which thus allows the two portions L t' ofthe spindle to come close together to allow of the cop D being easily slipped thereon or the cop-tube to be removed therefrom. Vhen the spindle is closed down into the shuttle, the arm G is rocked downward on its pivot by the contact ofthe expander-pin m with the shoulder t, and as the arm descends in the are of a circle its upper portion is carried forward toward the point ofthe spindle, thus pushing the pin m forward within the spindle and causing its point to act upon the inelines n, thus expanding1 the spindle near its point or front end against the hollow interior of the cop I), which is thereby held securely in place, as desired.

It will be observed on an inspection of Fig. 3 that as the spindle commences to be depressed thc pin m has no forward movementnntil its under side is brought into Contact `with the shoulder t of the arm G. The operation of pushing forward the pin m to expand the spindle then commences, which requires the exertion of considerable force, and this movement is effected by the arm G without any sliding` or rubbingr movement whatever against the pin, but merely by an end-thrust, and consequently there is hardly any appreciable wear, even when the parts are not oiled. It will be seen that the curved arm or plate G does not come into contact with the spindle itself at any point, as the recessed portion q isv of sufiieient width to prevent its contact with either of the parts h t', and consequently the plate G does not act as or perform any of the functions of a wedge, or operate in any way to expand the spindle, except through the intervention of the pin m which it actuates.

as it causes the spring to act with more force to close down the spindle, it will be found particularly adapted for use with that class of shuttles having split spindles provided with expanding devices, for the reason that with the latter, additional power is required to force down the spindle on account of the increased resistance offered, and consequently where my friction-roll is employed, a spring ofthe usual power will readily overcome the resistance offered by the expanding device, whereas, if no friction-roll is used, and a more powerful spring is employed to overcome the extra resistanee produced by the employment of an expanding device, the friction would be n1aterially increased, and the parts would soon become worn and require to be renewed or repaired.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination, with a shuttle-body and a split spindle pivotcd therein, having:r a longi tudinallysliding wedge or pin, m, adapted to expand said spindle near the point, of a rock ing pivoted plate or arm, G, extending around in front of the heel of the spindle, and upward through a notch or slot, lr, in the expander pin or wedge in, and having a lip or projecf tion, s, on that portion which extends above the slot 1', and a stop or shoulder, t, on that portion immediately beneath the slot r, where by the upper end ot' the arm G is prevented from dropping down out of the said slot or sliding up through the same as the spindle is raised or dep ressed,substantially as described.

fitness my hand this 22d day of June, A. D. 1886.

AMOS l5. TAYLOR.

In presence ofl?. E. TnscHEMAonnn, W. J. CAMBRIDGE. 

